SNA Server Windows 3.x APPC Display Call May Cause GP Fault
Article ID: 137308
Article Last Modified on 12/8/2003
APPLIES TO
- Microsoft SNA Server 2.0, when used with:
- Microsoft SNA Server 2.1, when used with:
- Microsoft SNA Server 3.0, when used with:
This article was previously published under Q137308
SYMPTOMS
If a Windows 3.x program calls the APPC DISPLAY verb and uses the
CSEXTNIDCSLISTND option to return a list of active SNA Servers in the
domain, the program may encounter an application exception in WINMGT.DLL,
WDMOD.DLL, application DLL, or may cause the computer to stop responding
(hang). For backwards compatibility, SNA Server included the APPC Display
verb CSEXTNIDCSLISTND for applications written to talk to IBM ES for OS/2
version 1.0.
This problem occurs only if there are no SNA Servers in the domain that are
configured to support a Netview connection.
CAUSE
The winmgt calls the SNAReleaseBuffer with a random memory address
and releases a random memory segment (stack, dgroup or code).
RESOLUTION
Microsoft has updated the file WINMGT.DLL to correct this problem.
STATUS
Microsoft has confirmed this to be a problem in SNA Server for Windows NT.
This problem was corrected in the latest SNA Server for Windows NT, 2.11
U.S. Service Pack. For information on obtaining the Service Pack, query on
the following word in the Microsoft Knowledge Base (without the spaces):
Additional query words: prodsna 2.11 gpf general protection fault gp
Keywords: kbbug kbfix KB137308